Window ventilating device.



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'HENRY Knus, orl CINCINNATI, orIIo, AssICNon To CHRISTINA nnLEwEIN, orCINCINNATI,

i oIIIo.

wINDow vEN'rInA'IING DEVICE.

' VPatented Feb. 9, 1909.

Application filed December 12,1908. Serial No. 457,273.

To all whom fit may concern.'

Be it known that l, HENRY KRUC, a citizen of the United StatesofAmerica, and a resident of Cincinnati, in thel county of Hamilton andStateof Ohio, have invented certain new and useful Improvements inWindow Ventilating Devices, of which the following is a specification.

This invention relates to window ventilating appliances, particularly tothat class in which a Closure or safety device is used to enable eithersash to be arranged and held in open position forventilation or thelike, especially in warm weather, or in warm climates where such adeviceis necessary and most desirable. i rlhe invention consists in theprovision of a pair of lazy-tongs gratings coupled so as to open `andclose in unison and pivotallyconnected at their respective opposite endsto horizontal cross frame-bars, means for connecting said crossframabars to the sides of the window-frame, means for adapting saidcross framebars to be locked in open position and means Vfor connectingthe traveling upper cross frameebar with the open sash w ereby thelatter is held in locked position readily accessible from the inside andthe gratings prevented from being closed Y or operated except forauthorized service.`

The essential features ofthe invention, including detailsy ofconstruction, will be fully hereinafter described and particularlypointed out in the claims.

ln the accompanying sheet of drawings,

Figure 1 is a front elevation of my invention,

showing it in operating position in con- Y nection with an openwindow-sash, the view being taken on the innerside of the Window; Fig.2, a central, sectional elevation of Fig. 1, but taken on a somewhatlarger scale; Fig. 3, a fragmentary front elevation of the gratings andshowing the upper cross frame-bar, but

omitting'the sashes and showing fragments of the vertical sides ofthewindow-frame; Fig. 4, a ,front elevation of my invention, showing thedevice in closed position in connection with the lower portion of thewindow-frame` but omitting the sashes; Fig. 5, a

detail front elevation of oney of theV side socket-plates-used for thesupport andlocking-engagement of the` upper grating Cross frame-bar;Fig. 6, a view similar to Fig. 5, but of one of the lower pair ofsocket-plates "bolts used in connection with the lower cross frame-barof the gratings; and Fig. 7, a horizontal section taken on line w, x, ofFig. 2.

ln these views, 1 indicates the window-sill, 2, 2 the upright Vsides ofthe window-frame and 3 the horizontal top of said-windowframe.

4indicates the lower sash and 5 the upper sash of the window, arrangedas customary within said window-frame and adapted to slide verticallytherein.

6, 6 indicates a pair of vertically-disposed lazy-tongs gratings coupledtogether by a pairof horizontal parallel bars 7 to prevent lateralsagging or tendency and so that they may operate in a directperpendicular line into expanded, open position or into contractedclosed position, as shown in Figs. 1

and 4, respectively.

f 8 indicates a lower horizontal cross framebar havinglaterally-operating.bolts 9, 9 at its op osite ends, the outer ends ofsuch aving horizontally-projecting lugs that engage .slots 10 in plates11 attached atV the lower ends of vthe .sides 2,2 of the window-frame.The slotted plates 11 are best shown in detail .in Fig. `6, the slotsbeing@ elongated Vvertically and provided with" narrowed ends or notches10a for the assage to and fro of the lugs on the bolts 9 w en thegratings are 'to be placed in kposition in the window opening or takentherefrom. When the gratings are in position said window opening, thelugs on the bolts 9 lie horizontally and are thus held firmly within theCavity of the window-framesides back of the plates 11.

12 lindicates an upper horizontal cross frame-bar -to -which the upperends of the lazy-tongs gratings are pivotally-attached,

the lower ends of said gratings being pivotally-attached to thclowerhorizontal crossbar 8, as best seen in Fig. 1. The upper cross-bar 12carries a pair of bolts 13 having outwardly-disposed handles 14 at theirinner ends and horizontally-disposed lugs 15 at their opposite outerends, such lugs engaging horizontally-elongated openings 16 in plates 17attached to the sides of the window-- frame about mid-height and thebolts turned a quarter of a revolution with the handles 14 disposedupwardly so that the lugs at the outer ends engage back of the plates 17in suitable cavities provided in the said sides of are provided in theupper cross-bar the window-opening.

the `window-france. In order to turn the bolts said quarter of arevolution, notches i8 Y 12 and horizontal O'uide-wa s or slots 1Q arefurther n l u I n provided ror the sliding of said bolts inwardly andthereby releasing the lugs at their outer ends from engagement with theiorizontall-y-elongated slots of the plates 17. Notched corner lugs 20are lprovided at the o i P lower portion of the plates 1! ror theseating oi the opposite ends oi' the upper cross-bar 12 when thegratings are in position tor closing 21 indicates a vertical tubeslotted at 22 along its rear side and provided at its upper end with aprojection orpin 2S, the latter engaging an eye 24 in the outer end ofan arni 25 projecting forwardly from the center ol Athe .upper bar 26 ofthe upper window-sash, all as best seen in Fig. 2.

27, 27 indicate a pair of lateral arnis or lugs projecting in oppositedirections troni the lowerend of the tube 21 and provided on their rearends ywith inwardly-projeeting pins 28, shown dotted in Fig. 1, suchpins engaging the openings 29 in each orp the two handles 14 of thesliding bolts i3, for the purpose oi sustaining said bolts 13 in theirlocked position and, also, for the purpose of supporting said tube 21 invertical position in engagement between the eye 2d on the arm 25 of theupper sash and the upper cross-bar 12 of the gratings. rllhe gratingsare thus held in their open position to properly close the openingbeneath the raised lower sash when it is desired to ventilato or 4toleave said lower sash in its open position.

' 30 indicates a vertical rod provided wita a pin 3l projecting at itslower end inwar ily toward the apartinent and with a pin 32 projectingirorn its upper end outwardly into engagement with a inetalsoclret 33 secured to the inner face oi the central portion oi themeeting-rail 34 at the top of the lower sash, as best seen in Fig. 2.This vertical rod 3() telescopically-engages the tube 21 lroni the lowerend or inouth of the latter, the vertical slot 35 provided between thelateral-projecting lugs 27 and the upper pin end oi the rod beingengaged with the upper meeting-rail of the lower sash and the pin 32being adapted to ride vertically in the slot 22 oi the said tube 21. Thepin 31 at the lower end of the rod 30 serves as a handle in sliding suchrod vertically within the tuoe 21, but the ordinary ineans of raisingthe lower sash by talring hold of the lower bar or' said sash serves thepurpose of raising the rod in the tube through the intermediary of theu; pin engaging the meeting-rail oli said lower sash. Said pin 31 ishoused 'within the slot or opening 35 at the lower end of the tube 2i,as best seen in Fig. 2, and thus prevents the rod -from turning-strainwithin the tube and relleves the pin 32 at the top oi the rod from iarnese turning-strain in connection with its engagement with theineetiirr-rail of the lower sash.

TWhen it desired to remove the grating device troni the winlo\\'-l"ranie, the followingl operation is pursued ze-The rod i3() islirst lowered so that its lower end shall engage the opening 3G providedbetween the inner ends ot the ribs 37 of the lower cross-bar S, atwliich tinie the upper pin end ol" .iai d bar ran be swung outwardliroin engagement with the meeting-rail of the lower sash and, also,from position at the lower end ol the tube 2l g said rod can now beentirely renioved troni the device and set aside the lower end ol" thetub-e 21 carrying the pins is thon swung outward so that said pins canbecome disengaged lroni the openings L@ in the bolt-handles 14 and thenthe tube can be lowered so that the pin at its upper end can be remlilvdisengaged froin the eye 2a in the arni 25 at the upper end of the uppersash.; said tube can now be set aside the saine as said rod ,z thehandles la on the bolts 13 are now swung inwardly(toward the operator) aquarter turn so that both bolts can he drawn inwardly freni engagementat their outer ends with the lock-plates 17 ,z the upper cross-har 12 isnow raised troni seating-eiigageinent at its ends #ith the lower lugs2t) on said lock-plates 1.7 and then swung outward slightly, therebypermitting the said opposite ends to clear said lugs 2O in the furtherdownwaid moveaent of the upper cross-bar 12, the bolts E) sert/*ing aspivots until the quarter turn has been nia-de, at which tiine said bolts9 can drawn inwardly for releasing` their outer lugged ends freinengagement with. the slotted plates 11.

Yhen the parts are in the position seen in Figs. 1 and f2, neither ofthe uf'iiniow-sashes can be nioved owing to the presence ol" the tube 21and the rod 30 with their locking-pin connectionsin due engagementhereinbefore described and it is not possible lor any one on the outsideol' the window to enter the rooin or apartment through the grating, asaccess to the locking rod and pin devices is retarded and prevented bythe lowering ol the open lower sash which is progressively clo. J 'ainstthe hand ollr the intruder at all tin-ies noni the beginning oi thedescent ner cross-bar to which the un ier end of said l i grating isattached, locking ineans on said upper cross-bar adapted to engage thewindow-traine and ineans between said upper cross-bar and the upper harol the windowtraine to lock said grating in its open position forclosing the opening of an open lower window-sash.

2. ln awindow-grating forventilating purposes, the combination of alazy-tongs grating vertically eXpansible, a lower cross-bar having boltsat its opposite ends that Aare adapted to engage lock-plates in thewindowfrarne and connected to the lower end of said grating, an upperlcross-har having bolts adapted to engage look-plates in thewindowfrarne intermediate its upper and lower end and connected with theupper end of said grating, a tube having pins at its lower'end' sash.

HENRY KRUG.

Witnesses:

JOHN ELIAS JONES, NORMA KEISER.

